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      Acute kidney injury in cancer patients: A nationwide survey in China

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          Abstract

          Cancer patients have a high risk for acute kidney injury (AKI); however, the incidence, severity, and risk factors of malignancy-related AKI (MR-AKI) are unclear. This study aimed to assess MR-AKI risk factors and provide reliable data for AKI prevention, diagnosis, and management in China. This cross-sectional study analysed data from 44 academic and local hospitals in China. AKI patients were identified based on 2 screening criteria: the 2012 Kidney Disease: Improving Global Outcomes-AKI definition and the expanded screening criteria for patients with no repeated serum creatinine (SCr) test within 7 days and those who recovered from AKI. Patients whose SCr level increased or decreased by 50% during hospitalization, compared with that at admission, were considered to have AKI according to the expanded criteria. A total of 7,604 AKI patients were enrolled (1,418 with MR-AKI). Patient characteristics were compared between the MR-AKI and non-MR-AKI groups. Multivariate logistic models were used to statistically assess risk factors. The proportions of MR-AKI patients in academic and local hospitals were 20.2% and 14.1%, respectively. The incidence of MR-AKI was higher in mid-China (the affluent region), elderly patients, and groups with higher per capita gross domestic product. Among MR-AKI cases, gastrointestinal cancer (50.1%) was the most common malignancy, followed by cancers of the reproductive (15.3%), haematological (13.1%), respiratory (11.8%), and other systems (8.3%), and cancers of unknown classification (1.4%). Of 268 hospital deaths, respiratory, haematological, gastrointestinal, reproductive, other system, and unknown classification cancers accounted for 29.3%, 18.8%, 18.6%, 12.9%, 16.9%, and 20.0%, respectively. Increased age, advanced AKI stage at peak, level of per capita gross domestic product, geographic region, and renal replacement therapy indication were risk factors for hospital mortality in patients with gastrointestinal MR-AKI, whereas cardiovascular disease history, AKI stage at peak, and geographic region were risk factors for mortality in patients with reproductive MR-AKI. The incidence and mortality of MR-AKI vary by hospital, economic level, age, geographic region, and malignancy type. High MR-AKI incidence was associated with gastrointestinal cancers and higher level of medical care provided by academic hospitals in affluent regions such as Beijing, Shanghai, and other provincial-level cities. Elderly patients with advanced gastrointestinal cancer in mid-China showed the highest incidence of MR-AKI and in-hospital mortality, and thus require special attention.

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          Annual Report to the Nation on the Status of Cancer, 1975–2007, Featuring Tumors of the Brain and Other Nervous System

          Background The American Cancer Society, the Centers for Disease Control and Prevention (CDC), the National Cancer Institute, and the North American Association of Central Cancer Registries (NAACCR) collaborate annually to provide updated information on cancer occurrence and trends in the United States. This year’s report highlights brain and other nervous system (ONS) tumors, including nonmalignant brain tumors, which became reportable on a national level in 2004. Methods Cancer incidence data were obtained from the National Cancer Institute, CDC, and NAACCR, and information on deaths was obtained from the CDC’s National Center for Health Statistics. The annual percentage changes in age-standardized incidence and death rates (2000 US population standard) for all cancers combined and for the top 15 cancers for men and for women were estimated by joinpoint analysis of long-term (1992–2007 for incidence; 1975–2007 for mortality) trends and short-term fixed interval (1998–2007) trends. Analyses of malignant neuroepithelial brain and ONS tumors were based on data from 1980–2007; data on nonmalignant tumors were available for 2004–2007. All statistical tests were two-sided. Results Overall cancer incidence rates decreased by approximately 1% per year; the decrease was statistically significant (P < .05) in women, but not in men, because of a recent increase in prostate cancer incidence. The death rates continued to decrease for both sexes. Childhood cancer incidence rates continued to increase, whereas death rates continued to decrease. Lung cancer death rates decreased in women for the first time during 2003–2007, more than a decade after decreasing in men. During 2004–2007, more than 213 500 primary brain and ONS tumors were diagnosed, and 35.8% were malignant. From 1987–2007, the incidence of neuroepithelial malignant brain and ONS tumors decreased by 0.4% per year in men and women combined. Conclusions The decrease in cancer incidence and mortality reflects progress in cancer prevention, early detection, and treatment. However, major challenges remain, including increasing incidence rates and continued low survival for some cancers. Malignant and nonmalignant brain tumors demonstrate differing patterns of occurrence by sex, age, and race, and exhibit considerable biologic diversity. Inclusion of nonmalignant brain tumors in cancer registries provides a fuller assessment of disease burden and medical resource needs associated with these unique tumors.
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            Long-Term Exposure to Air Pollution and Increased Risk of Membranous Nephropathy in China.

            The effect of air pollution on the changing pattern of glomerulopathy has not been studied. We estimated the profile of and temporal change in glomerular diseases in an 11-year renal biopsy series including 71,151 native biopsies at 938 hospitals spanning 282 cities in China from 2004 to 2014, and examined the association of long-term exposure to fine particulate matter of 70 μg/m(3) We also found that higher 3-year average air quality index was associated with increased risk of MN. In conclusion, in this large renal biopsy series, the frequency of MN increased over the study period, and long-term exposure to high levels of PM2.5 was associated with an increased risk of MN.
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              Incidence of acute kidney injury in cancer patients: a Danish population-based cohort study.

              Cancer patients may be at increased risk of acute kidney injury, but evidence is limited. We assembled a cohort of incident cancer patients diagnosed within a population-based hospital setting in Northern Denmark (population:~1.2 million) between 1999 and 2006. Patients were followed up to five years for acute kidney injury, identified using creatinine measurements recorded in a laboratory database covering the study area. Acute kidney injury was defined according to recent consensus criteria as a 50% increase in creatinine level. We computed incidence rate, 1-year, and 5-year risks of acute kidney injury, accounting for competing risk from death. Acute kidney injury incidence was compared between cancers using a Cox regression model adjusted for important confounders. Among 37,267 incident cancer patients with a creatinine measurement, 9613 (25.8%) developed acute kidney injury during 77,376 person-years. The incidence was 258 (95%CI: 252-264) per 1000 person-years the first year after cancer diagnosis decreasing to 43 (95%CI: 41-44) thereafter. The 1-year risk was 17.5% (95%CI: 17.1-17.9%), and the 5-year risk was 27.0% (95%CI: 26.5-27.5%). We observed the highest 1-year risk in patients with kidney cancer [44.0% (95%CI: 40.5-47.5)], liver cancer [33.0% (95%CI: 28.2-37.8%)], or multiple myeloma [31.8% (95%CI: 27.3-36.3%)]. Similar results were observed after adjustment for confounders. Both overall and for most specific cancer sites, risks were higher among patients with distant metastases at cancer diagnosis. Acute kidney injury is a common complication in cancer patients, particularly in patients with kidney cancer, liver cancer, or multiple myeloma. Copyright © 2011 European Federation of Internal Medicine. Published by Elsevier B.V. All rights reserved.
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                Author and article information

                Contributors
                qianghe1973@126.com
                Journal
                Sci Rep
                Sci Rep
                Scientific Reports
                Nature Publishing Group UK (London )
                2045-2322
                5 March 2019
                5 March 2019
                2019
                : 9
                : 3540
                Affiliations
                [1 ]Department of Nephrology, Zhejiang Provincial People’s Hospital, Zhejiang, 310014 P. R. China
                [2 ]People’s Hospital of Hangzhou Medical College, Zhejiang, 310014 P. R. China
                [3 ]ISNI 0000 0004 1759 700X, GRID grid.13402.34, Department of Respiratory medicine, Sir Run Run Shaw Hospital, , Medical School of Zhejiang University, ; Zhejiang, 310014 P. R. China
                Author information
                http://orcid.org/0000-0001-6704-6247
                Article
                39735
                10.1038/s41598-019-39735-9
                6401015
                30837515
                f105f76f-da5d-4468-b66d-2265ec16828e
                © The Author(s) 2019

                Open Access This article is licensed under a Creative Commons Attribution 4.0 International License, which permits use, sharing, adaptation, distribution and reproduction in any medium or format, as long as you give appropriate credit to the original author(s) and the source, provide a link to the Creative Commons license, and indicate if changes were made. The images or other third party material in this article are included in the article’s Creative Commons license, unless indicated otherwise in a credit line to the material. If material is not included in the article’s Creative Commons license and your intended use is not permitted by statutory regulation or exceeds the permitted use, you will need to obtain permission directly from the copyright holder. To view a copy of this license, visit http://creativecommons.org/licenses/by/4.0/.

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                : 18 April 2018
                : 29 January 2019
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